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LB1940U Datasheet(PDF) 4 Page - ON Semiconductor

Part # LB1940U
Description  Monolithic Digital IC 2-ch H-Bridge Constant Current Driver Constant-current control
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

LB1940U Datasheet(HTML) 4 Page - ON Semiconductor

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LB1940T, LB1940U
No.7232-4/8
Pin Assignment
Pin Description
Pin No.
Pin No.
LB1940T
LB1940U
Pin
Name
Description
LB1940T
LB1940U
Pin
Name
Description
1
20
VC1
Reference voltage input for 1ch
control
11
10
VS2
Motor power supply (+)
2
19
S-GND
GND for control system
12
9
OUT4
Motor drive output 4
3
18
VC2
Reference voltage input for 2ch
control
13
8
RFG2
Constant-current detection pin
4
17
Vref
Reference voltage output
14
7
OUT3
Motor drive output 3
5
16
ENA1
Signal input for 1ch control
15
6
OUT2
Motor drive output 2
6
15
ENA2
Signal input for 2ch control
16
5
RFG1
Constant-current detection pin 1
7
14
IN1
Signal input for 1ch control
17
4
OUT1
Motor drive output 1
8
13
IN2
Signal input for 2ch control
18
3
VDD
Control system power supply (+)
9
12
FC1
C connection pin for 1ch phase
compensation
19
2
SVDD
Control system power output
10
11
FC2
C connection pin for 2ch phase
compensation
20
1
VS1
Motor power supply (+)
10
9
8
7
6
5
4
3
2
1
20
13
14
11
15
16
17
18
19
12
VC1
S-GND
VC2
Vref
ENA1
ENA2
IN1
IN2
FC1
FC2
VS2
OUT4
RFG2
OUT3
OUT2
RFG1
OUT1
VDD
SVDD
VS1
Top view
LB1940T
20
13
14
15
16
17
18
19
12
VC1
S-GND
VC2
Vref
ENA1
ENA2
IN1
IN2
FC1
11 FC2
10
VS2
9
OUT4
8
RFG2
7
OUT3
6
OUT2
5
RFG1
4
OUT1
3
VDD
2
SVDD
1
VS1
Top view
LB1940U


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